Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: me diga as datas administradas que veem um Steve Westly* de ––, um Antonio Villaraigosa* de –– e 47% para jerry brown.
 ###Tabelas: CREATE TABLE ships_in_which_bolitho_serves (ships_in_which_bolitho_serves_id AUTO_INCREMENT PRIMARY KEY, Ship VARCHAR, Guns INT, Class VARCHAR, Captain VARCHAR, Rank VARCHAR, Year VARCHAR) CREATE TABLE democratic_primary (democratic_primary_id AUTO_INCREMENT PRIMARY KEY, Poll source VARCHAR, Dates administered VARCHAR, Dianne Feinstein * VARCHAR, Jerry Brown VARCHAR, Antonio Villaraigosa* VARCHAR, Gavin Newsom* VARCHAR, John Garamendi* VARCHAR, Jack O'Connell* VARCHAR, Steve Westly* VARCHAR, Bill Lockyer* VARCHAR) CREATE TABLE round_8 (round_8_id AUTO_INCREMENT PRIMARY KEY, Home team VARCHAR, Home team score VARCHAR, Away team VARCHAR, Away team score VARCHAR, Venue VARCHAR, Crowd INT, Date VARCHAR) CREATE TABLE 6001–6100 (6001–6100_id AUTO_INCREMENT PRIMARY KEY, NGC number VARCHAR, Object type VARCHAR, Constellation VARCHAR, Right ascension ( J2000 ) VARCHAR, Declination ( J2000 ) VARCHAR, Apparent magnitude INT) CREATE TABLE by_net_enrollment_ratio_in_education (by_net_enrollment_ratio_in_education_id AUTO_INCREMENT PRIMARY KEY, Region VARCHAR, Preschool (0–5 years) VARCHAR, Primary (6–13 years) VARCHAR, Secondary (14–17 years) VARCHAR, Tertiary (18–24 years) VARCHAR)  
SELECT Dates administered FROM democratic_primary WHERE Steve Westly* = –– AND Antonio Villaraigosa* = –– AND Jerry Brown = 47%